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We transformed RMgBr into R-Ti derivatives with the production of byproduct MgBrO~(i-Pr at the same time, but we didn\'t need romove the Mg salt by centrifugation or chelating reagents, for bis[2-(N,N-dimethylamino)ethyl] ether could chelate with Mg atom and thereby reduced the Louis acidity of Mg salt, so we used R-Ti derivatives produced in situ to alkylate the aldehydes induced by BINOL-Ti complexes..

我们通过利用TiO~(i-Pr_4使格氏试剂转化成烷基钛，同时产生具有亲核加成促进作用的副产物MgBrO~(i-Pr，由于BDMAEE能与MgBrO~(i--Pr络合降低其路易酸活性，所以不需要离心或者借助络合试剂完全除去镁盐，而使用原位生成的烷基钛在BINOL-Ti诱导下对醛进行不对称加成。

The computa-tion indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.

计算表明，硅炔与氢分子加成反应可生成稳定的甲硅烷基硅烯。

Most Allspice is produced in Jamaica, but alternative sources include Guatemala, Honduras, and Mexico.

大多数多香果产于牙买加，但也有另外的来源，包括危地马拉，洪都拉斯和墨西哥。

Most Allspice is produced in Jamaica, but alternative sourcesinclude Guatemala, Honduras, and Mexico.

大多数多香果产于牙买加，但也有另外的来源，包括危地马拉，洪都拉斯和墨西哥。

Heavy water, also called aloes, produced in India, nanyang sandalwwood resin and etc

沉水香，又称为沉香，由生产于印度、南洋等香木的树脂而制成

Alongshore bars are produced at the point of wave break.

沿滨砂洲是在波浪拍岸处形成的。

The alpha ray is composed of alpha particle, alpha particle is the quick movement hellion, it is a stable atomic nucleus, alpha particle is produced when the instability nucleus have alpha decay emits.

射线是由α粒子组成的，α粒子就是快速运动的氦核，它是一个稳定的原子核，α粒子是在不稳定原子核发生α衰变时放射出来的。

But the positive electrons produced by aluminium under the action of a source of alpha rays continue to be emitted for some time after removal of the source. The number of electrons emitted decreases by half in three minutes.

但是，在射线动能源作用下铝产生的正电子在动能源撤走后的相当长时间里仍继续被排斥出来，且排出的电子数量在3分钟后减少一半。

The alphabet soup of abbreviations this generated was often as baffling as the products that the acronyms represented. In 2006 and early 2007, no less than $450bn worth of these "CDO of ABS" securities were produced.

因此而产生的缩写字母组合，往往与这些字母所代表的产品一样令人困惑。2006年至2007年初，价值不低于4500亿美元的"CDO of ABS"被创造出来。

Former German Alsace, is produced in the local Christmas tree.

以前德国的亚尔萨斯，是出产圣诞树的地方。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。